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Expansion plug SX

The powerful nylon plug with 4-way expansion

The fischer expansion plug SX transfers force optimally in the building material through the 4-way expansion. Apart from the typical expansion, the high-quality nylon used for its production guarantees secure and permanent fixing. The plug is available in sizes from 4 x 20 to 16 x 80 mm and optionally with screws. The fischer expansion plug SX is the first choice when fixing, for example, lighting, lasts, bath and toilet installations and light wall cabinets in concrete and aerated concrete, but also in masonry made from solid or hollow building materials. The variants with preshaped edges prevent the plug from slipping into the drill hole. The variants with larger anchorage depths are Ideal for fixings in hollow building materials, in aerated concrete and for plaster covering.

Product Description


  • The 4-way expansion provides the optimum force distribution in the material, and offers high load-bearing capacities in solid and hollow building materials.

  • The expansion-free plug neck prevents the creation of expansion forces on the material surface whilst screwing in the screw. This helps to prevent damage to tiles and plaster.

  • The pronounced rim prevents the plug from slipping into the drill hole, thus allowing for a simple installation.

  • The greater anchorage depth of the SX 6x50, 8x65 and 10x80 means that the plug is especially suited to fixings in hollow building materials, aerated concrete and to bridge plaster.

Available Product Variants

Application and Permission

  • Lighting
  • Wardrobes
  • Motion detectors
  • Skirting
  • Light shelves
  • Mirror cabinets
  • Letter boxes
  • TV consoles
  • Trellis
  • Folding shutters
  • Bath and toilet installations
Building materials
  • Concrete
  • Vertically perforated brick
  • Hollow blocks made from lightweight concrete
  • Cavity floor slabs made from bricks and concrete
  • Perforated sand-lime brick
  • Solid sand-lime brick
  • Natural stone with dense structure
  • Aerated concrete
  • Solid panel made from gypsum
  • Solid brick made from lightweight concrete
  • Solid brick
You can find detailed information on building materials in the registration document.
For Details see corresponding Documents

Assembly Instruction


  • The SX is suitable for pre-positioned and push-through installation.

  • When turning in the screw, the SX expands in four directions, thus providing a secure anchoring in the building material.

  • The required screw length is given by: Plug length + fixture thickness + 1 x screw diameter.

  • Suitable for wood, chipboard and spacing screws (fischer ASL, see page ).

Documents for Downloading

Additional Documents

System Components & Related Categories